1321301125 has 32 divisors (see below), whose sum is σ = 1745183232. Its totient is φ = 996688000.

The previous prime is 1321301123. The next prime is 1321301147. The reversal of 1321301125 is 5211031231.

It is not a de Polignac number, because 1321301125 - 2¹ = 1321301123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321301123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200889 + ... + 207361.

It is an arithmetic number, because the mean of its divisors is an integer number (54536976).

Almost surely, 2^1321301125 is an apocalyptic number.

It is an amenable number.

1321301125 is a deficient number, since it is larger than the sum of its proper divisors (423882107).

1321301125 is an equidigital number, since it uses as much as digits as its factorization.

1321301125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582 (or 6572 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1321301125 is about 36349.7059823047. The cubic root of 1321301125 is about 1097.3216173258.

Adding to 1321301125 its reverse (5211031231), we get a palindrome (6532332356).

The spelling of 1321301125 in words is "one billion, three hundred twenty-one million, three hundred one thousand, one hundred twenty-five".